Barrel-hoop driver.



J. E. PETTIT.

BARREL HOOP DRIVER.

- APPLICATION FILED NOV. 24, 190B.

Patented 11012.21, 1911.

Eff 1 COLUMBIA PLANOfl RAPH UNITED STATES,

PATENT OFFICE.

JOHN E. PETTIT, DE LOS ANGELES, CALIFORNIA, ASSIGNOR OF ONE-HALF TPORTER H. MATHEWS, OF LOS ANGELES, CALIFORNIA.

BARREL-H0O]? DRIVER.

Specification of Letters Patent.

Application filed November-24, 1908.

Patented Nov. 21, 1911.

Serial No. 464,269.

State of California, have invented new and useful Improvements inBarrel-Hoop Drivers, of which the following is a specification.

My invention relates to an apparatus for tightening hoops of barrels orthe like, and a main object thereof is to provide an apparatus in whichthe hoop tightening mecha nism is simple in construction and positive inoperation, and which may be manually operated.

Another object is to provide a mechanism in which the barrels may bereadily placed in an operative position under the tightening mechanismwithout elevating or raising the barrels from'the floor.

Another object is to provide an apparatus in which the driving arms areuniformly pressed inwardly against the barrel being operated upon, so asto insure at all times a perfect contact of the shoes attached to thearms against the hoops being tightened.

A further object is to provide an apparatus in which the operating armsattached thereto may be instantly forced into or out of engagement withthe hoops on the barrel.

I accomplish the above objects by means of the apparatus describedherein and'illustrated in the accompanying drawings, in

which Figure 1 is a front elevation of my complete apparatus, portionsbeing in section. Fig. 2 is a sectional plan view taken on line 2-2 ofFig. 1. Fig. 3 is a sectional detail of one of the driving arms. Fig. 4is a detail side elevation of the mechanism for operating the drivingarms. Fig.5 is

a detail plan view of the mechanism -illus-.

trated in Fig. 4.

Referring more particularly to the drawings, designates a floor, towhichis rigidly secured by'means of bolts 11 a pair of vertical tubularstandards 12 and 13 jointed at the top thereof by a cross head or beam14. In place of this cross head the ceiling of the warehouse may beutilized, the

standards being secured thereto in a suitable manner.

Bolted or otherwise secured to the under face of beam 14 is a liftingmechanism 15 of any suitable type, but preferably a hydraulic jack. Inthisinstance I have illustrated a rack and pinion movement, whichconsists of a cylindrical casing 16 open at the lower end for thepassage therethrough of the upper end of a centrally disposedreciprocating shaft 17 having a rack gear 18 formed thereon. Pinion 19secured on the I inner end of a horizontally disposed shaft 20 ismounted in bearings 21 formed on casing 16, and bearings 22 on standard12 meshes with rack 18. Shaft 20 extends through standard 12 and mountedthereon is a sprocket wheel 23 that is connected by means of a drivechain 24 with a sprocket wheel 25 secured to a shaft 26 mounted in abearing 27 formed on standard 12. Rigidly secured on the outer end ofthis shaft is a balance wheel 28 provided with a handle 29. By means ofthe above described mechanism the hoop tightening device may be raisedor lowered as occasion requires and, which I will now proceed todescribe.

The hoop tightening mechanism preferably consists of a flat circulardriving head 30 provided on the edge thereof with oppositely'disposedguides 31 adapted to engage vertical guideways 32 formed on the innerfaces of standards 12 and 13. Head 30 is provided in the center thereofwith a bearing hub 33 preferably formed integrally therewith in whichthe lower end of lifting shaft 17 is secured. Spaced apartat equalintervals around the periphery of head 30 are a plurality of recesses 34which form with recessed bearing blocks 35 bolted or otherwise securedto the under face of'head 30, bearings 36 for a plurality of pivoteddriving arms 37. These arms are preferably bifurcated on their upperends to form bearings for pins 38 which are engaged by the slotted endsof driving arm operating link rods 39, their inner ends extending towardthe center of head 30 and are pivotally secured to a sliding sleeve 40mounted on the lower end of shaft 17 Sleeve 40 is -forced downwardly bymeans of a coiled conipression spring 41 which is interposed on shaft 17between the upper edge of sleeve '40 and a flange 42 formed on theshaft.

By means of the above described device of an individual or separateadjustment of the rods, if the barrel being operated upon is imperfectin contour. Each operating rod 39 is provided with a coiled compressionspring 44 that bears against the upper bifurcated ends of driving arms37 By means of these springs a separate tension is maintained on eachrod.

When the driving arms are operating upon the uppermost or first hoop ofthe barrel, the operating rods 39 will be inclined at such an angle thatsprings 44 will not exert as powerful a tension on the arms 37, and toprovide for this I have provided an additional tension mechanism foreach arm, which preferably consists of a vertical standard 45 having anadjustable sleeve 46 secured thereto. Mounted in sleeve 46 is a springpressed plunger 47, the outer end of which bears against the inner faceof the upper end of driving arms37.

The driving arms are spread apart or drawn together by means of a forkedoperating lever 50 pivotally mounted on a standard 51 secured tocircular head 30. The forked end of lever 50 is pivotally secured to apair of lifting rods 52, their lower ends being pivotally secured to thelower end of sleeve 40. Pivotally secured to standard 51 is a dog 53adapted to engage notches 54 formed in the upper edge of lever 50, bymeans of which sleeve 40 may be maintained in an adjusted position.

By means of the above described mechanism the driving levers may beadjusted instantly without utilizing the lifting mechanism hereinbeforedescribed.

The inner faces of the lower ends 55 of driving arms 37 are curvedoutwardly to prevent interference with the hoops 56 on the barrel, andare preferably formed of hardened steel and bolted or otherwise securedto the ends of arms 37. These arms are recessed to form bearings forsteel con tact shoes 57 adapted to engage the barrel hoops, and arereversible so that when they wear they may be turned.

The floor 10 between the vertical standards may be recessed or depressedas clearly shown in Figs. 1 and 2 of the drawings to accommodate abarrel truck or car 60 provided with flanged wheels 61 that are mountedon rails 62 laid in the floor recess. This truck is preferably providedwith an upper circular table 68 mounted on ball bearings 64 secured tothe under frame 65. Secured to the upper face of table 63 are aplurality of barrel stops or gages 66. These stops are for the purposeof positioning the barrel on the table 63 before rolling the truck underthe lifting mechanism. Table 63 is rotatively secured to the truck frameso that the barrels may be placed on the table from either side of thevertical standards, the stops 66 being rotated to the side opposite fromwhich the barrel is placed upon the table.

It will be observed from the foregoing description that by recessing thefloor directly beneath the driving mechanism, and providing a truckwhose platform is flush with the floor line that I am enabled to quicklyplace a filled barrel on the truck without necessitating excessive laboron the part of the operator.

The operation of the device is as follows: When it is desired to tightenthe hoops on a filled barrel, the barrel is first ended and placed inposition upon the truck, and the lifting mechanism is then operated soas to bring the lower end of the driving arms in a position so that thebarrel will not contact therewith when pushed into position. The liftingmechanism is then rotated downwardly and the lever 50 is operated so asto spread the driving arms outwardly until they are in a position tocontact with the hoops on the barrel, lever 50 is then released so as tobring the steel contact shoes 57 into engagement with the upper edge ofone of the hoops. The lifting mechanism is now rotated downwardly untilthe contact shoes have tightened the hoop on the barrel to the desiredextent. The same operations occurring with the successive hoops untilall have been sufficiently tightened.

It will be noted from the foregoing description that I have provided anapparatus which is extremely simple in construction and highly eflicientin operation, and by means of which I am enabled to quickly tighten thehoops on filled barrels.

Special attention is called to the slots 43 which connect the links oroperating rods 39 with the arms 37. In order to understand the advantageof these slots it should be understood that when the shoes 57 firststrike the side of the barrel in their descent, the pins 38 are disposedat the outer ends of the slots. As the shoes move down on the side ofthe barrel they are forced outwardly on account of the increasingdiameter of the barrel, and the slots 43 permit this outward movementwithout affecting the sleeve 40. The slots enable the driving arms toadapt themselves to irregularities in the form of the barrel.

Special attention is called to the utility of the turn table 63. Itenables the barrel to be rotated so as to bring the rivets on the hoopsout of alinement with the driving shoes 57. This is advantageous as therivets may interfere with the operation of the shoes, and in fact theshoes may sometimes operate to cut the rivets.

What I claim is 1. A hoop driving mechanism comprising a reciprocatinghead, a plunger carrying the same, barrel engaging arms having hoopengaging end portions pivoted upon said head, a reciprocating sleevecarried by said plunger and connected with the upper ends of all of saidarms, spring tension means common to all the said arms, and actuatingthe said reciprocating sleeve for bringing all of said arms into contactwith a barrel hoop, individual tension springs interposed between saidsleeve and each of said arms, and a lever capable of instantlydisengaging the arms from a barrel without the necessity of operatingthe said plunger.

2. A hoop driving mechanism comprising a reciprocating head, a plungerfor operating the same, hoop engaging arms pivoted to said head, thesaid arms projecting above said head at their upper ends, areciprocating member movable upon said plunger, links connecting thearms with said sleeve, a spring tension means actuating the said sleevefor bringing all of said arms into hoop engaging position, individualtension means upon said links, and carried by each of said arms wherebythe arms will accommodate themselves to unevenness in the barrel surfaceand auxiliary tension means affecting each of said arms, and mountedupon the said reciprocating head.

3. A hoop driving mechanism comprising, a reciprocating head, a plungerfor removing the same, barrel hoop driving arms pivoted intermediatetheir lengths to the said reciprocating head, a reciprocating membercarried by the plunger, links connecting the same with the upper ends ofthe hoop driving arms, the said links having slots in their arm engagingends, individual tension springs carried by said links and aifecting thearms individually, a common spring tension exerting a pressure upon saidmovable member, a lever pivoted upon the said head and engaging the saidmovable member for resting it against the common springtension wherebyall of the arms may be disengaged from a barrel without the necessity ofoperating the head reciprocating plunger, and means for holding thelever in its adjusted position.

In witness that I claim the foregoing I have hereunto subscribed my namethis 16th day of November, 1908.

J. E. PETTIT.

Witnesses:

EDMUND A. STRAUSE, M. A. PALMER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, .D. 0.

